micturating cystourethrogram
Radiological study using contrast to evaluate bladder and urethral anatomy during voiding.
Full Definition
A micturating cystourethrogram (MCU) is a specialized radiological examination that uses contrast material to visualize the bladder and urethra during the voiding phase. This study is particularly valuable for evaluating urethral anatomy, identifying posterior urethral valves, and assessing bladder emptying. The examination requires catheterization to fill the bladder with contrast, followed by imaging during micturition. MCU complements voiding cystourethrogram (VCUG) by focusing specifically on the voiding phase and urethral anatomy rather than reflux detection.
Usage
Usage note: Often abbreviated as MCU; distinguish from VCUG which focuses on reflux rather than voiding anatomy.
In Context
- "MCU demonstrated posterior urethral valves with bladder neck hypertrophy." — Radiology report
- "Repeat micturating cystourethrogram was scheduled to assess post-surgical urethral caliber." — Follow-up imaging order